Stack AI vs Langflow vs FastGPT vs Redlight Greenlight for Claude Code

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Stack AI
vs
Competitor 1
Langflow
Competitor 2
FastGPT
Competitor 3
Redlight Greenlight for Claude Code
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
Remove
Competitor Langflow
langflow.org
Drag and drop AI
Make main Remove
Competitor FastGPT
fastgpt.io
FastGPT is an open-source platform for building AI agents and knowledge-base applications.
Make main Remove
Competitor Redlight Greenlight for Claude Code
github.com
One-click approve for Claude Code permissions
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
215.3Kvisits/mo
—
637.9Mvisits/mo
MoM change
▼ 57.9%
▼ 0.7%
—
▲ 3.7%
6-month growth
-93.7%
-4.9%
—
+19.3%
Global rank web
#1,700,092
#217,191
—
#49
Avg. last 3 months
13.9K
225.2K
—
629.7M
Bounce rate lower is better
39%
44%
—
36%
Pages / visit
1.8
2.2
—
5.9
Visit duration
14s
1m 04s
—
6m 26s
Traffic sources
—
● Direct 76% · ● Referral 24%
—
● Direct 83% · ● Referral 15%
Stack AILangflowFastGPTRedlight Greenlight for Claude Code
0159.5M318.9M478.4M637.9MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KRedlight Greenlight for Claude Code · 484.3MRedlight Greenlight for Claude Code · 504MRedlight Greenlight for Claude Code · 542.6MRedlight Greenlight for Claude Code · 534.8MRedlight Greenlight for Claude Code · 634.3MRedlight Greenlight for Claude Code · 631MRedlight Greenlight for Claude Code · 636.1MRedlight Greenlight for Claude Code · 615.2MRedlight Greenlight for Claude Code · 637.9M1K10K100K1M10M100M1BStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KRedlight Greenlight for Claude Code · 484.3MRedlight Greenlight for Claude Code · 504MRedlight Greenlight for Claude Code · 542.6MRedlight Greenlight for Claude Code · 534.8MRedlight Greenlight for Claude Code · 634.3MRedlight Greenlight for Claude Code · 631MRedlight Greenlight for Claude Code · 636.1MRedlight Greenlight for Claude Code · 615.2MRedlight Greenlight for Claude Code · 637.9MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Freemium
Free Trial
Starting price
Free tier
Free
CNY 99per month · free tier available
$5per month
Free tier
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Free trial
–
–
API access
–
Plans
—
—
Free Edition FreeBasic Edition $99/moAdvanced Edition $599/moCustom Edition Custom
Plan $5/moPlan $21/unknown
Capabilities input → output
Input
DataDocumentsText
Text
DocumentsTextWeb pages
Text
Output
Apps
Apps
Apps
Text
Skill level
Intermediate
Advanced
Advanced
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Chatbots & CompanionsEducation & LearningProductivity & OfficeAI Agent+2 more
Development & CodeAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
5
9
2
1
Agents
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No-code
–
–
Workflows
–
–
Agent creation
–
–
Developer tools
–
–
Chatbots
–
–
–
Development
–
–
–
LLM development
–
–
–
APIs
–
–
–
Customer support chatbot
–
–
–
Finance workflow automation
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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–
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.